Multiple high dose MDMA (ecstasy) tablets circulating in NSW

What is Heroin? Heroin is an opioid - a central nervous system depressant that slows breathing and can cause life-threatening overdose, especially in people who have never or rarely used opioids. While heroin and alprazolam are bothdepressants, they are very differentsubstances. Using heroin with other depressants like alcohol, benzodiazepines (such as Xanax or Valium) or